Theoretical method and application of dynamic consolidation range of high fill earth and stone

WU Shuai-feng; DU Ji-fang; WEI Ran; WEI Ying-qi; XIAO Jian-zhang; YAN Jun

doi:10.11779/CJGE2020S2008

Volume 42 Issue S2

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Chinese Journal of Geotechnical Engineering > 2020 > 42(S2): 43-49. > DOI: 10.11779/CJGE2020S2008

WU Shuai-feng, DU Ji-fang, WEI Ran, WEI Ying-qi, XIAO Jian-zhang, YAN Jun. Theoretical method and application of dynamic consolidation range of high fill earth and stone[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(S2): 43-49. DOI: 10.11779/CJGE2020S2008

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Theoretical method and application of dynamic consolidation range of high fill earth and stone

1.
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100048, China
2.
School of Management Science and Engineering, Shandong Technology and Business University, Yantai 264005, China

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Received Date: August 06, 2020
Available Online: December 07, 2022

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Abstract

Abstract

The dynamic compaction method is widely used in high fill reinforcement, but there are few methods to determine the reinforcement range based on the theoretical calculation, furthermore, there are fewer methods to describe the transverse reinforcement width. However, the reinforcement depth and width are the key to the dynamic compaction design. On this basis, the method for calculating the internal settlement of dynamic compaction based on the random medium theory is established. The model only contains two parameters, i.e., the influence angle β and the compression coefficient η. The field tests on dynamic compaction of earth and stone in Chengde Airport shows that the model can be used to calculate the internal settlement of soils. The concept of the critical settlement is put forward, and the critical settlement of cohesionless earth rock materials is determined to be 0.04 m. Finally, the fast chart results of dynamic consolidation range based on the depth of ramming pit are given. The proposed method realizes the innovation and rapid application of dynamic consolidation theory and method, and provides direct reference results for the related projects.
- dynamic compaction,
- internal settlement,
- reinforcement range,
- random medium,
- chart checking

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